Sash-lock.



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P. J. LA BELLE.

SASH LOCK.

APPLICATION FILED 123.6, 1910.

988,1 14, A Patented 'Ma,r. 28, .1911;

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PETER J'. LA BELLE, OF BIRMINGHAM, ALABAMA, ASSIGNOR OF ONE-HALF TOEDWARD WALD, OF BIRMINGHAM, ALABAMA.

SASH-LOCK.

Specication of Letters Patent.

Patented Mar. 28, 1911.

Application filed April G, 1910. Serial No. 553,722.

To all whom it may concern:

Be it known that I, PETER J. LA BELLE, a citizen of the United States ofAmerica, residing at Birmingham, in the county of Jefferson and State ofAlabama, have invented new and useful Improvements in Sash-Locks, ofwhich the following is a specification.

This invention relates to a combined sash lock and lift, the objectbeing to provide a structure operable to release the sash in movementthereof to its open position.

In the drawings, forming a portion ofi this specification and in whichlike numerals of reference indicate similar parts in the several viewsr-Figure 1 is a front eleva-` tion of my improved sash lock, and liftshowing the same in its applied position on a window sash and casing,part-s being shown in section to clearly illustrate the invention. Fig.2 is a vertical section therethrough. Fig. 3 is a view similar to Fig. 1showing the movable locking members moved to their released positions.

Upon reference to Figs. 1 to 3 inclusive of the drawings, it will beobserved that my improved sash lock and lift consists of a casing 1which may be of any suitable well known and desired design. As shown,the said casing is provided with flanges 2 which are secured to thewindow sash A by fastening devices 3. The casing is provided with anopening 4: which is disposed in line with an opening 5 in a keeper-plate6 which is secured to the casing B, as illustrated. The casing isprovided with companion pivot posts 7 on which are pivotally mountedlocking dogs 8 each being provided with an arm 9 which extends upwardlyand outwardly substantially at an obtuse angle to the pivot of the dog,a foot 10 and a nose 11. The feet are formed to provide hooked portions12 which are operable to engage the member 13 of the keeper-plate. Thearms 9 of the said locking dogs extend outwardly in opposite directionsand through passages 14 of the head 15 of an actuating member 16 whichis movable vertically in the easing. The member extends through theupper portion of the casing and is formed to provide a finger-receivingelement 17 for a purpose to be hereinafter described. A spring 18 iscoiled about the shank of the actuating member 16, and as illustrated,one end bears against the said head 1,5 and its opposite end bearsagainst the top of the casing so that the spring exerts its tensionagainst the head to cause the same to normally assume the position shownin Fig. 1 of the drawings. This construction is such that through thejust described engagement of the head 15 of the actuating member withthe locking dogs, the said dogs will be normally held engaged with thekeeper-plate to hold the sash against movement. The casing is formed toprovide stops 19 for a purpose to be hereinafter explained. The members21 are secured to the head 15. To further insure the engagement of thedogs with the keeper-plate I provide leaf springs 22 whose free endsbear against the nose portions 11 of the locking dogs, as shown. Thestops 19 bear against the springs to insure a proper tension against thedogs. The members 21 are provided with guide lugs 11 which operate toengage the side walls of the casing 1 to insure an accurate slidingmovement of the actuating member.

In operation of the herein described lift and lock, assuming it to bethe desire of the operator to move the sash to an open position pressureis applied on the actuating member to move it against the tension of thespring 18 and also against the tension of the springs 22. In thismovement of the actuating member the arm portions 9 of the locking dogswill be engaged by the walls of the slots 14 in the head 15 to rock suchdogs and to move them out of locking engagement with the keeper-plate.The construction described is such that the actuating member isconstructed not only as a means for releasing the dogs from thekeeper-plate but as a. grip to enable the operator to convenientlymanipulate the sash.

I claim:

A sash lock comprising a pivoted dog mounted on the sash, a keeperlocated in the path of movement of the dog, the said dog having an armwhich extends upwardly and outwardly substantially at an obtuse angle tosaid dog, and a sliding actuating member having an aperture receivingthe arm In testimony whereof I ax my signature of the dog, said armbeing slidable betveen in presence of two Witnesses.

the Walls ofthe aperture and teatrinothereaga-inst so that in onemovement ofbthe ao- PETER J' LA BELLE' 5 tuating member movement will beimparted Witnesses:

to the dog to release the same from the J. F. BRISKEL, keeper. BENDAVIS.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

